Analysis
- max time kernel
137s - max time network
132s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 16:36
Static task
static1
Behavioral task
behavioral1
Sample
document-900539577.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-900539577.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-900539577.xlsm
- Size 106KB
- Sample210331-pxy5rapk8j
- SHA256 69952de5c84d4e1b2aec321a76841ea6b0facbd89b39fca0326d339a506ee45b
- MD5 137f07339ad2a60804c7646455686878
- SHA1 4672481bc94b3ac00ed6160ca53d7a0e1421bb5c
- SHA512 3620863b690207de3d68419993f7cbf25c179f70fe7bf7fc533b7a98785456262aa9818f9a6631a0556c7af6ec5a518bfdd8f8abbe802ac71aebd1a8f80febf2
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
-
icedid
Campaign
-
3633240867
C2
-
afdeserutil32.website
Signatures
- Process spawned unexpected child process 5 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3764 1176 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4004 1176 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2012 1176 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3224 1176 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1900 1176 rundll32.exe 68 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/1900-14-0x00000167F4AE0000-0x00000167F4AE7000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 2 IoCs
flow pid Process 44 1900 rundll32.exe 46 1900 rundll32.exe - Loads dropped DLL 1 IoCs
pid Process 1900 rundll32.exe - Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE - Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1176 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1900 rundll32.exe 1900 rundll32.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1176 EXCEL.EXE 1176 EXCEL.EXE - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 1176 EXCEL.EXE 1176 EXCEL.EXE 1176 EXCEL.EXE 1176 EXCEL.EXE 1176 EXCEL.EXE 1176 EXCEL.EXE 1176 EXCEL.EXE 1176 EXCEL.EXE 1176 EXCEL.EXE 1176 EXCEL.EXE 1176 EXCEL.EXE 1176 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 1176 wrote to memory of 3764 1176 EXCEL.EXE 82 PID 1176 wrote to memory of 3764 1176 EXCEL.EXE 82 PID 1176 wrote to memory of 4004 1176 EXCEL.EXE 83 PID 1176 wrote to memory of 4004 1176 EXCEL.EXE 83 PID 1176 wrote to memory of 2012 1176 EXCEL.EXE 84 PID 1176 wrote to memory of 2012 1176 EXCEL.EXE 84 PID 1176 wrote to memory of 3224 1176 EXCEL.EXE 85 PID 1176 wrote to memory of 3224 1176 EXCEL.EXE 85 PID 1176 wrote to memory of 1900 1176 EXCEL.EXE 86 PID 1176 wrote to memory of 1900 1176 EXCEL.EXE 86
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\document-900539577.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1176 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3764
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:4004
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2012
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3224
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk4,DllRegisterServer2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:1900
-